re: Home Brewing: First brew complete, on to the tasting and next brew!

Nice work on the beer.

quote:

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I have my setpoint at 65 (suggested fermentation temperature) and my differential on 3 degrees. Well, after i checked it again, the temp last night, it was at 59. Apparently the freezer is kicking on and when it shuts off the temp drops too low. How do i set my temp controller right? Should i set my differential lower, to 1 degree? I don't believe i quite understand what the differential does.

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The reason that it has a 3 degree span is so the freezer motor doesnt burn up by turning on and off really quickly. Most likely your beer did not get to 59. I would be content with setting the temp maybe a little higher if you notice this problem again with the next beer. Or you could just slowly have the temp increase to ensure that the porter finishes fermenting.